An unmanned plane of NATO-led International Security Assistance Force (ISAF) crashed in Kunduz province north of Afghanistan on Monday, a press release of the alliance said.

"An International Security Assistance Force unmanned aerial vehicle went down in Kunduz province today," the press release added.

It also added that the vehicle, a German Army Kleinflugger Zielortung, or KZO, was remotely piloted from a ground station and contains no weapons or intelligence that could be exploited by enemy forces.

Meantime, authorities in Kunduz province told Xinhua that the pilotless plane went down in Ludin area, a suburban of provincial capital Kunduz city at 01:30 a.m. local time but caused no loss of life or damage.

This is the second unmanned plane of NATO-led troops crashed in the northern Kunduz province over the past month.

In the previous incident similar pilotless plane went down in Qalai Zal district couple of weeks ago.

Four NATO soldiers have been killed in Afghanistan's troubled southern region over the past two days, bringing the number of NATO-led forces fatalities to over 420 since beginning this year in the militancy-hit country.